混凝劑的配置和投加PreparationandDosing

混凝劑的配置和投加

PreparationandDosingofCoagulant水處理過(guò)程Watertreatmentprocess產(chǎn)生

for水

Water藥劑

Chemicals凝聚

Agglomeration絮凝

Flocculation混凝劑的配置和投加

PreparationandDosingofCoagulant混凝過(guò)程

Coagulationprocess藥劑的溶解

Dissolving配置

Preparing計(jì)量

Measuring投加

Dosing混合

Mixing反應(yīng)

Reaction混凝劑的配置和投加

PreparationandDosingofCoagulant混凝劑的投加方式：

Dosingmodes:干法（固體）投加

Dry(solid)dosing濕法（液體）投加

Wet(liquid)dosing將藥劑直接投放到被處理的水中。干法投加勞動(dòng)強(qiáng)度大，投配量難掌握和控制，對(duì)攪拌設(shè)備要求高。

Directlyaddthechemicals

intothewatertobetreated.Drydosingrequireshighlaborintensityandhighstandardstirringequipment,andthedosageisdifficulttocontrol.目前普遍采用的投加形式，將固體溶解后配成一定濃度的溶液或?qū)⒊善芬后w藥劑投入原水中

Acommonlyuseddosingmodeatpresent,inwhichthesolidsaredissolvedintoasolutionwithacertainconcentration,orthefinishedliquidsolution

isaddedintotherawwater.混凝劑的配置和投加

PreparationandDosingofCoagulant濕法投加溶解和投加過(guò)程：

Wetdosing&dissolutionanddosingprocess:溶液池

Solutiontank定量控制設(shè)備

Quantitycontrolequipment藥劑

Chemicals溶解池

Dissolvingtank水

Water水

Water投藥設(shè)備

Dosing

equipment混合設(shè)備

MixingequipmentCONTENTS目錄混凝劑的溶解和溶液配制

Dissolutionofcoagulantandpreparationofsolution混凝劑投加

Dosingofcoagulant混凝劑投加量自動(dòng)控制

Automaticcontrolofcoagulantdosage01混凝劑的溶解

和溶液配制

Dissolutionofcoagulant

andpreparationofsolution混凝劑的配置和投加

PreparationandDosingofCoagulant混凝劑的溶解和溶液配制

Dissolutionofcoagulantandpreparationofsolution混凝劑的溶解

DissolutionofCoagulant大中型水廠

Large-

to

medium-sizedwaterplants混凝土溶解池+攪拌裝置

Concretedissolvingtank+stirringdevice設(shè)2池（2格）交替使用

2tanks(2cells)foralternateuse小型水廠

Smallwaterplants陶缸

Potterypots混凝劑溶液配制

Preparationofcoagulantsolution溶液池

Solutiontank混凝劑溶解和溶液配制

Dissolutionofcoagulantandpreparationofsolution混凝劑的配置和投加

PreparationandDosingofCoagulant攪拌目的

Purposeofstirring為了加速藥劑的溶解

Tospeedup

thedissolution機(jī)械攪拌

Mechanicalstirring壓縮空氣攪拌

Compressedairstirring水力攪拌

Hydraulicstirring藥劑量小

Smalldosag藥劑量大

Largedosage混凝劑溶解和溶液配制

CoagulantDissolutionandSolutionPreparation混凝劑的配置和投加

PreparationandDosingofCoagulant電動(dòng)機(jī)驅(qū)動(dòng)槳板

Motordrivenpaddle渦輪攪拌機(jī)

Turbineagitator機(jī)械攪拌

Mechanicalstirring擺線針輪攪拌機(jī)

Cycloidalpinwheelagitator.進(jìn)口擺線針輪攪拌機(jī)

Importedcycloidalpinwheelagitator35W單相攪拌機(jī)

35Wsingle-phaseagitator磁性翻板液位計(jì)

Magneticflap

level

gauge混凝劑溶解和溶液配制

CoagulantDissolutionandSolutionPreparation混凝劑的配置和投加

PreparationandDosingofCoagulant壓縮空氣攪拌

Compressedairstirring不與溶液直接接觸

Notindirectcontactwithsolution動(dòng)力消耗較大

Highpowerconsumption使用維修方便

Convenientuseandmaintenance溶解速度稍慢

SlightlyslowerdissolutionrateGrilleAirductEffluentpipeGasinlet

pipeInfluentpipeSlagdischargepipe壓縮空氣攪拌調(diào)制

Compressedairstirringandpreparation混凝劑溶解和溶液配制

CoagulantDissolutionandSolutionPreparation混凝劑的配置和投加

PreparationandDosingofCoagulant水泵攪拌

Waterpumpstirring用水泵自溶解池抽水再送回溶解池，屬于水力攪拌。

Themode,inwhichwaterispumpedfromthedissolvingtankbyawaterpumpandthensentbacktothedissolvingtank,belongstohydraulicstirring.利用水廠二級(jí)泵站高壓水沖動(dòng)藥劑，用于中小型水廠和易溶混凝劑。

Thehigh-pressurewaterfromthesecondarypumpstationofthewaterplantisusedtoflushthereagent.Thismodeisusedinsmallandmedium-sizedwaterplantsandforeasilysolublecoagulants.使用FeCl3時(shí)尤需注意。而且FeCl3溶解時(shí)放出大量熱，當(dāng)溶液濃度為20%時(shí)，溶液溫度可達(dá)70度左右，這一點(diǎn)也應(yīng)注意。

AttentionshouldbepaidspecialwhenusingFeCl3.Inaddition,whenFeCl3

dissolves,itwillreleasealargeamountofheat.Whenthesolutionconcentrationis20%,thesolutiontemperaturecanreachabout70°C.Thisshouldbenoted.2溶解池、攪拌設(shè)備及管配件等，均應(yīng)有防腐設(shè)施或采用防腐材料。

Thedissolvingtank,stirringequipmentandpipefittingsshallbeprovidedwithanti-corrosionfacilitiesormaterials.1混凝劑溶解和溶液配制

CoagulantDissolutionandSolutionPreparation混凝劑的配置和投加

PreparationandDosingofCoagulant注意Attention混凝劑溶解和溶液配制

CoagulantDissolutionandSolutionPreparation混凝劑的配置和投加

PreparationandDosingofCoagulant溶解池

Dissolvingtank地面

Ground加藥間

Dosingroom溶解池建于地面以下便于操作

Dissolvingtanksareconstructedbelowgroundlevelforeaseofoperation.通常設(shè)在加藥間的底層；

Itisusuallysetatthebottomofthedosingroom;池頂高出地面約0.2m左右；

Thetopofthetankshallbeabout0.2mabovetheground;底坡應(yīng)大于2%；

Thebottomslopeshallbegreaterthan2%;池底設(shè)排渣管；

Aslagdischargepipeshallbesetatthebottomofthetank;超高為0.2～0.3m。

Thesuperelevationshallbe0.2~0.3m.混凝劑溶解和溶液配制

CoagulantDissolutionandSolutionPreparation混凝劑的配置和投加

PreparationandDosingofCoagulant溶解池的藥劑送往溶液池進(jìn)行配制

Thereagentinthedissolvingtankissentto

thesolutiontankforpreparation溶液池：配制一定濃度溶液的設(shè)施

Solutiontankisafacilityforpreparingsolutionswithcertainconcentration.耐酸泵或射流泵將溶解池內(nèi)的濃藥液送入溶液池

Theconcentratedsolutioninthedissolvingtankissenttothesolutiontankbyacid-resistantpumporjetpump.同時(shí)用自來(lái)水稀釋到所需濃度以備投加

Atthesametime,theconcentratedsolutionisdilutedwithtapwatertotherequiredconcentrationfordosing.W1=（0.2～0.3）W2混凝劑溶解和溶液配制

CoagulantDissolutionandSolutionPreparation混凝劑的配置和投加

PreparationandDosingofCoagulant溶解池容積W1按下式計(jì)算：

ThevolumeW1ofthedissolvingtankshallbecalculatedaccordingtothefollowingformula:式中：W2為溶液池容積。

Where:W2isthevolumeofsolutiontank.根據(jù)經(jīng)驗(yàn)：

Accordingtoexperience,中型水廠溶解池容積為0.5～0.9m3/（萬(wàn)m3．d），

thevolumeofdissolvingtankinamedium-sizedwaterplantis0.5~0